| 草酸盐法合成Li_aNi_(0.7)Co_(0.3)O_2及电化学性能研究 |
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| 引用本文： | 黄元乔,郭文勇,甘雄,李道聪.草酸盐法合成Li_aNi_(0.7)Co_(0.3)O_2及电化学性能研究[J].江汉大学学报(自然科学版),2005,33(1):29-31. |
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| 作者姓名： | 黄元乔 郭文勇 甘雄 李道聪 |
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| 作者单位： | 1. 武汉大学,化学与分子科学学院,湖北,武汉,430072;湖北教育学院化学系,湖北,武汉,430205
2. 武汉大学,化学与分子科学学院,湖北,武汉,430072 |
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| 基金项目： | 国家自然科学基金资助项目(29771025) |
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| 摘 要： | 采用草酸盐沉淀及高温固相反应相结合的方法合成了锂离子电池的活性正极材料Li_aNi_(0.7)Co_(0.3)O_2.XRD、SEM及电化学测试数据表明:该材料结晶及层状结构良好,首次充放电比容量为175.4mAh/g和142.9mAh/g,循环30次后放电比容量仍为136.0mAh/g,比容量损失只有4.8%.
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| 关 键 词： | 锂镍钴复合氧化物 正极材料 锂离子电池 比容量 |
| 文章编号： | 1673-0143(2005)01-0029-03 |
| 修稿时间： | 2004年10月14 |
Synthesis by Precipitated Nickel and Cobalt Oxalates and Electrochemical Property Studies of LiaNi0.7Co0.3O2 |
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| HUANG Yuan-qiao,GUO Wen-yong,GAN Xiong,et al..Synthesis by Precipitated Nickel and Cobalt Oxalates and Electrochemical Property Studies of LiaNi0.7Co0.3O2[J].Journal of Jianghan University:Natural Sciences,2005,33(1):29-31. |
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| Authors: | HUANG Yuan-qiao GUO Wen-yong GAN Xiong |
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| Institution: | HUANG Yuan-qiao1,2,GUO Wen-yong1,GAN Xiong1,et al. |
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| Abstract: | the cathode material LiaNi0.7Co0.3O2of lithium-cell was prepared by precipitated nickel and cobalt oxalates together with solid-state synthesized methods. The test datas of XRD and SEM and electrochemical properties showed that crystal and layer structure were excellent. Its charged and discharged capacities were 175.4 mAh/g and 142.9 mAh/g at the first cycle and still 136.0 mAh/ g after the 30th. Loss was only 4.8 %. |
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| Keywords: | lithium-nickel-cobalt composite oxide cathode material lithium ion battery specific capacity |
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